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DeWalt DWD112 Troubleshooting

This is a troubleshooting page for the DeWalt DWD112.

Device Won’t Turn On ¶ 

When you press the trigger the device does not function.

It is not plugged in ¶ 

The cord was jarred loose in the outlet. Grab the power cord and push the socket further into the outlet. Try pressing the trigger to see if the device rotates. If it does not, try other solutions found below.

Worn out brushes ¶ 

The brushes which connect the power cord and trigger to the motor can become worn out and need to be replaced. Follow this guide to replace the brushes.

Worn out wires ¶ 

Wires inside the drill can get overworked. The wires connecting the trigger box and the electrical power source to the motor can get damaged. The field wraps wire tightly around itself creating power and when the wires cannot continue the flow of current the drill will not rotate. Follow a step by step guide to replace the field here.

Short Circuit ¶ 

A short circuit means the current stops flowing at an electrical connection. Find where the short occurred by using a voltmeter. You can repair the short circuit with electrical tape and looping it around the connection.

Power Cord is Damaged ¶ 

The power cord that plugs into the wall became damaged and no longer supplies power to the drill.

Poor Connection ¶ 

Accidents happen when working in an environment with power tools. The power cord can get severed or fray. The electrical connection can also become damaged if the power cord is bent in certain ways. Learn how to replace the power cord using this guide.

Drill is Overheating ¶ 

The drill is getting increasingly hot and possibly difficult to use because of the heat.

Overuse ¶ 

Use over an extended period of time can overwork the drill. Excessive heat can make it difficult to hold and operate the drill. Take a break and let the drill cool down before trying to use it again.

Fan is clogged ¶ 

In a work environment with power tools, dust and debris can fly around and clog the fan which cools the motor. As a result, the drill can slow down and overheat. Learn how to access the cooling fan and replace it using this guide.

Drill Bit is Not Secure ¶ 

The chuck will not fasten the drill bit in place.

Spin the chuck ¶ 

Spin the chuck in the clockwise direction while holding the drill bit in the hole until the chuck clamps the drill bit. To ensure the drill bit is firmly clamped in the chuck, continue to twist the chuck clockwise until it is not possible to tighten any further.

Chuck is broken ¶ 

If trying the previous suggestion does not work, the chuck may need replacing. You may want to install a chuck that requires a key to avoid any problems tightening drill bits in the future. To replace the chuck and attached spindle, follow this guide.

Trigger is Not Firing ¶ 

The drill does not fire when the trigger is depressed.

Trigger is stuck ¶ 

It is possible dust and debris got caught in the trigger making the it stuck in one place. To fix this problem, remove the cover and clean out the trigger area of any loose dust and debris. If this still does not solve the problem, follow this step by step guide to replace the trigger box and power cord.

Wires are loose ¶ 

Wires can be jarred loose after heavy use and may need to be secured back in place. Follow this guide to make sure all connections are tight and allow for maximum current flow.

Drill Spins Too Fast ¶ 

Too much power is generated causing the drill bit to spin too fast.

Too Much Torque ¶ 

A variable speed trigger switch permits speed control on the DWD112, the farther the trigger is depressed, the higher the speed of the drill. Use lower speeds for starting holes without a center punch drilling in metals or plastics. Higher speeds are generally used for drilling in wood. This is helpful for drill in certain materials such as pine and concrete.

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